Bactrocera dorsalis
In 3 days ~20% in a week ~40%
Bactrocera dorsalis, previously known as Dacus dorsalis and commonly referred to as the oriental fruit fly, is a species of tephritid fruit fly that is originally from to Southeast Asia. It is one of the major pest species in the genus Bactrocera with a broad host range of cultivated and wild fruits. Male B. dorsalis respond strongly to methyl eugenol, which is used to monitor and estimate populations, as well as to annihilate males as a form of pest control. They are also important pollinators and visitors of wild orchids, Bulbophyllum cheiri and Bulbophyllum vinaceum in Southeast Asia, which lure the flies using methyl eugenol.
The fly is similar to the closely related species B. carambolae and B. occipitalis. The species name B. dorsalis is identical to other synonyms B. papayae, B. invadens and B. philippinensis. B. dorsalis is a species of tephritid fruit fly. Flies that belong to this family are usually small to medium-sized with colorful markings. In particular, B. dorsalis belongs to a complex of physically similar flies called the Bactrocera dorsalis complex, whose defining characteristics include a mostly black thorax and dark T-shaped marking on the fly... Wikipedia →
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report an Oriental Fruit Fly sighting in Kaohsiung on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 111th most-seen of the 218 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report an Oriental Fruit Fly in Kaohsiung on a given day, against under 5% in March–May, July, October and December–January, the lowest months. That is one of Kaohsiung's wettest months, with about 440 mm of rain against 25 mm in February.
Among the best
Of the 12 cities where we can rate Oriental Fruit Fly sightings, Kaohsiung ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Taichung (Taiwan, about 10%).
Same order: Diptera
The closest relatives of the Oriental Fruit Fly that you can see in Kaohsiung (order Diptera, Flies) are Liriomyza bryoniae (about 10%), Yellow Fever Mosquito (about 10%) and Black Soldier Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Oriental Fruit Fly is recorded against all the insects logged in Kaohsiung (13 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
